Short of a coach getting cold feet or another job coming into play before everything is official, this is a done deal. Most coaching searches are like 1-2 weeks. Turd has been negotiating for 1-2 months to iron out all the details. You dont go through that entire process and then on the day when he signs go, ": Oh wait, you said 5 million for assistants, we only said 4 million." Its all been ironed out for the past 2 months. Offering and accepting a job is a formality.
Personally, I think this is just the natural pushback/doubt before its leaked or confirmed. That said, i dont know jackshit. I only play a contract lawyer on TV.